Prediction of free turbulent mixing using a turbulent kinetic energy method
Prediction of free turbulent mixing using a turbulent kinetic energy method
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使用湍流动能法预测自由湍流混合
DOI：
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发表时间：
1973
期刊：
影响因子：
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通讯作者：
P. Harsha
中科院分区：
文献类型：
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作者：
P. Harsha
通过相对简单的湍流动能方法分析了二维轴对称单流和双流流的自由湍流混合。该方法结合了湍流剪切和湍流动能之间的线性关系以及湍流动能方程中出现的长度尺度的代数关系。对于各种流动都获得了良好的结果。该技术被证明特别适用于具有传热和传质的流动，为此可以假设普朗特数和施密特数为非统一性。
Free turbulent mixing of two-dimensional and axisymmetric one- and two-stream flows is analyzed by a relatively simple turbulent kinetic energy method. This method incorporates a linear relationship between the turbulent shear and the turbulent kinetic energy and an algebraic relationship for the length scale appearing in the turbulent kinetic energy equation. Good results are obtained for a wide variety of flows. The technique is shown to be especially applicable to flows with heat and mass transfer, for which nonunity Prandtl and Schmidt numbers may be assumed.